public static void main(String[] args) {
     int s[]=new int[30];
      int temp=1;
      int sum=1;
    for(int i=0;i<s.length;i++)
       {
        s[i]=temp;
        temp=temp+2;
        if(i%10==0)
        {
            System.out.println();
        }else{
            System.out.print(s[i]);
            System.out.print(" ");
        }
        
        
       }
    }

}
结果：

3 5 7 9 11 13 15 17 19
23 25 27 29 31 33 35 37 39
43 45 47 49 51 53 55 57 59
好像缺了哪一步，输出不了1.21.41求解？

在打印换行符时也要输出数组  否则丟数据呢

public class Test02 {
    public static void main(String[] args) {
        int s[] = new int[30];
        int temp = 1;
        for (int i = 0; i < s.length; i++) {
            s[i] = temp;
            temp = temp + 2;
            if ((i+1) % 10 == 0)
                System.out.println(s[i]);
            else
                System.out.print(s[i]+" ");

        }
    }

}

输出：
1 3 5 7 9 11 13 15 17 19
21 23 25 27 29 31 33 35 37 39
41 43 45 47 49 51 53 55 57 59

[ 本帖最后由 雪碧透心凉 于 2014-3-16 09:30 编辑 ]

把else去掉就可以了

    public static void main(String[] args) {
         int s[]=new int[30];
          int temp=1;
          int sum=1;
        for(int i=0;i<s.length;i++){
            s[i]=temp;
            temp=temp+2;
            if(i%10==0){
                System.out.println();
            }
            System.out.print(s[i]);
            System.out.print(" ");
            
        }
    }

int s[]=new int[30];
                 int temp=1;
                 int sum=1;
                 for(int i=0;i<s.length;i++){
                     s[i]=temp;
                     temp=temp+2;
                     if(s[i]%10==0){——————》应该把i改成s[i]!!!!
                       System.out.println();
                     }
                     else{
                       System.out.print(s[i]);
                       System.out.print(" ");
                     }
                 }

int s[]=new int[30];
                 int temp=1;
                 int sum=1;
                 for(int i=0;i<s.length;i++){
                     s[i]=temp;
                     temp=temp+2;
                     if(s[i]%10==0){——————》应该把i改成s[i]!!!!
                       System.out.println();
                     }
                     else{
                       System.out.print(s[i]);
                       System.out.print(" ");
                     }
                 }

谢谢了。我再试试